I should also consider cultural context. "Sukdulan" is often associated with local or regional events in the Philippines, so the information might be limited to local media or community records. If the user is a Filipino or researching Filipino sports, they might have a specific source in mind that's not readily available online.

The phrase "Full 25 Work" is tricky. In boxing, rounds are 3 minutes each, and a typical amateur fight might have 4 rounds. "Full 25 Work" might refer to a specific scoring system where each fighter has 25 points to work with, or perhaps a unique rule in the event. Alternatively, it could be part of a title for an article or video, like "Full 25-Work Round," but that's speculative.

Possible next steps: Advise the user to provide more context, clarify if "Full 25 Work" is a specific part of the event, check if there are any local archives or community forums where this information might be discussed. Also, confirm if Katya Santos is a real person or a fictional character they're referring to.

So, the first part here is Sukdulan 2003, which probably refers to a specific sporting event in 2003. The mention of Katya Santos and a "Full 25 Work" is a bit unclear. Katya Santos might be an athlete involved in that event. "Full 25 Work" sounds like a term related to a competition category or a specific part of the event. Maybe it's a round or a scoring system where each competitor has 25 points to work with?